Port periphery contracts and tests to triple slash natspec styling

packages/contracts-bedrock/contracts/periphery/TransferOnion.sol

@@ -5,45 +5,34 @@ import { ReentrancyGuard } from "@openzeppelin/contracts/security/ReentrancyGuar
 import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
 
-/**
- * @title  TransferOnion
- * @notice TransferOnion is a hash onion for distributing tokens. The shell commits
- *         to an ordered list of the token transfers and can be permissionlessly
- *         unwrapped in order. The SENDER must `approve` this contract as
- *         `transferFrom` is used to move the token balances.
- */
+/// @title  TransferOnion
+/// @notice TransferOnion is a hash onion for distributing tokens. The shell commits
+///         to an ordered list of the token transfers and can be permissionlessly
+///         unwrapped in order. The SENDER must `approve` this contract as
+///         `transferFrom` is used to move the token balances.
 contract TransferOnion is ReentrancyGuard {
     using SafeERC20 for ERC20;
 
-    /**
-     * @notice Struct representing a layer of the onion.
-     */
+    /// @notice Struct representing a layer of the onion.
     struct Layer {
         address recipient;
         uint256 amount;
         bytes32 shell;
     }
 
-    /**
-     * @notice Address of the token to distribute.
-     */
+    /// @notice Address of the token to distribute.
     ERC20 public immutable TOKEN;
 
-    /**
-     * @notice Address of the account to distribute tokens from.
-     */
+    /// @notice Address of the account to distribute tokens from.
     address public immutable SENDER;
 
-    /**
-     * @notice Current shell hash.
-     */
+    /// @notice Current shell hash.
     bytes32 public shell;
 
-    /**
-     * @param _token  Address of the token to distribute.
-     * @param _sender Address of the sender to distribute from.
-     * @param _shell  Initial shell of the onion.
-     */
+    /// @notice Constructs a new TransferOnion.
+    /// @param _token  Address of the token to distribute.
+    /// @param _sender Address of the sender to distribute from.
+    /// @param _shell  Initial shell of the onion.
     constructor(
         ERC20 _token,
         address _sender,
@@ -54,11 +43,8 @@ contract TransferOnion is ReentrancyGuard {
         shell = _shell;
     }
 
-    /**
-     * @notice Peels layers from the onion and distributes tokens.
-     *
-     * @param _layers Array of onion layers to peel.
-     */
+    /// @notice Peels layers from the onion and distributes tokens.
+    /// @param _layers Array of onion layers to peel.
     function peel(Layer[] memory _layers) public nonReentrant {
         bytes32 tempShell = shell;
         uint256 length = _layers.length;

packages/contracts-bedrock/contracts/test/L1StandardBridge.t.sol

@@ -20,7 +20,7 @@ import { OptimismPortal } from "../L1/OptimismPortal.sol";
 
 contract L1StandardBridge_Getter_Test is Bridge_Initializer {
     /// @dev Test that the accessors return the correct initialized values.
-    function test_getters_succeeds() external {
+    function test_getters_succeeds() external view {
         assert(L1Bridge.l2TokenBridge() == address(L2Bridge));
         assert(L1Bridge.OTHER_BRIDGE() == L2Bridge);
         assert(L1Bridge.messenger() == L1Messenger);

packages/contracts-bedrock/contracts/test/TransferOnion.t.sol

 // SPDX-License-Identifier: MIT
 pragma solidity 0.8.15;
 
+// Testing utilities
 import { Test } from "forge-std/Test.sol";
 import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+
+// Target contract
 import { TransferOnion } from "../periphery/TransferOnion.sol";
 
-/**
- * @title  TransferOnionTest
- * @notice Test coverage of TransferOnion
- */
+/// @title  TransferOnionTest
+/// @notice Test coverage of TransferOnion
 contract TransferOnionTest is Test {
-    /**
-     * @notice TransferOnion
-     */
+    /// @notice TransferOnion
     TransferOnion internal onion;
 
-    /**
-     * @notice token constructor arg
-     */
+    /// @notice Token constructor argument
     address internal _token;
 
-    /**
-     * @notice sender constructor arg
-     */
+    /// @notice Sender constructor argument
     address internal _sender;
 
-    /**
-     * @notice Sets up addresses, deploys contracts and funds the owner.
-     */
+    /// @notice Sets up addresses, deploys contracts and funds the owner.
     function setUp() public {
         ERC20 token = new ERC20("Token", "TKN");
         _token = address(token);
         _sender = makeAddr("sender");
     }
 
-    /**
-     * @notice Deploy the TransferOnion with a dummy shell
-     */
+    /// @notice Deploy the TransferOnion with a dummy shell.
     function _deploy() public {
         _deploy(bytes32(0));
     }
 
-    /**
-     * @notice Deploy the TransferOnion with a specific shell
-     */
+    /// @notice Deploy the TransferOnion with a specific shell.
     function _deploy(bytes32 _shell) public {
         onion = new TransferOnion({ _token: ERC20(_token), _sender: _sender, _shell: _shell });
     }
 
-    /**
-     * @notice Build the onion data
-     */
+    /// @notice Build the onion data.
     function _onionize(TransferOnion.Layer[] memory _layers)
         public
         pure
@@ -66,9 +53,7 @@ contract TransferOnionTest is Test {
         return (hash, _layers);
     }
 
-    /**
-     * @notice The constructor sets the variables as expected
-     */
+    /// @notice The constructor sets the variables as expected.
     function test_constructor_succeeds() external {
         _deploy();
 
@@ -77,9 +62,7 @@ contract TransferOnionTest is Test {
         assertEq(onion.shell(), bytes32(0));
     }
 
-    /**
-     * @notice unwrap
-     */
+    /// @notice Tests unwrapping the onion.
     function test_unwrap_succeeds() external {
         // Commit to transferring tiny amounts of tokens
         TransferOnion.Layer[] memory _layers = new TransferOnion.Layer[](2);